Geodesic
Contra-Pre-Semi-Continuous Functions
Bulletin of the Malaysian Mathematical Society, Tome 28 (2005) no. 1 
M.K.R.S. Veera Kumar. Contra-Pre-Semi-Continuous Functions. Bulletin of the Malaysian Mathematical Society, Tome 28 (2005) no. 1. http://geodesic.mathdoc.fr/item/BMMS_2005_28_1_a7/
@article{BMMS_2005_28_1_a7,
     author = {M.K.R.S. Veera Kumar},
     title = {Contra-Pre-Semi-Continuous {Functions}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2005},
     volume = {28},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2005_28_1_a7/}
}
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Voir la notice de l'article provenant de la source BMMS

In this paper, we introduce and investigate contra-pre-semi-continuous functions. This new class is a superclass of the class of contra- β -continuous functions and contra-pre-continuous functions.